NON−SLIP STRUCTURE - SHIN CATERPILLAR MITSUBISHI CO

Title:

NON−SLIP STRUCTURE

Document Type and Number:

WIPO Patent Application WO/2003/033835

Kind Code:

A1

Abstract:

A non−slip structure capable of increasing a non−slip effect, eliminating a defect caused by a through−hole, and increasing a reliability, characterized in that a part of a sheet metal such as a steel sheet is sheared to form cutting lines for forming projected pieces (a pair of side cutting lines, and a connection cutting line) and the projected pieces are raised along the cutting lines to a larger equal to or higher than the thickness of the steel sheet to raise sheared faces (edges) along the cutting lines so that the sheared faces do not come into contact with the steel sheet to form a clearance and the through−hole in the steel sheet.

Inventors:

OHNO SHUNJI (JP)
NAKAJIMA NORIO (JP)
IWASA KAZUMICHI (JP)
TSUJI MASANORI (JP)
DOI TSUYOSHI (JP)
KOHZU YOSHIHISA (JP)
AGARIHAMA YOSHIHIRO (JP)
URA SHINYA (JP)

Application Number:

PCT/JP2002/010745

Publication Date:

April 24, 2003

Filing Date:

October 16, 2002

Export Citation:

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Assignee:

SHIN CATERPILLAR MITSUBISHI CO (JP)
OHNO SHUNJI (JP)
NAKAJIMA NORIO (JP)
IWASA KAZUMICHI (JP)
TSUJI MASANORI (JP)
DOI TSUYOSHI (JP)
KOHZU YOSHIHISA (JP)
AGARIHAMA YOSHIHIRO (JP)
URA SHINYA (JP)

International Classes:

E02F9/00; B21D22/02; B21D28/10; B60R3/04; B62D25/20; B62D25/22; E01C11/24; E02F9/16; E04F11/02; E04F11/16; E04F15/06; (IPC1-7): E04F15/06; B21D28/10; E02F9/16; E04F11/16

Foreign References:

US5653071A	1997-08-05
JPS57145037U	1982-09-11
JPH0461151U	1992-05-26
JP2002045928A	2002-02-12

Other References: